Merge branch 'fixbug/1025015' into 'master'

bug: [1025015] listUser4ReadingActivity接口500

See merge request rays/pcloud-book!893

pcloud-service-book/src/main/java/com/pcloud/book/group/set/GroupSet.java

@@ -738,7 +738,7 @@ public class GroupSet {
                 userBookInfoVO.setSex(userDTO.getSex());
             }
             //小号信息
-            if (!MapUtils.isEmpty(robotDTOMap) && userDTOMap.containsKey(userBookInfoVO.getWxUserId())) {
+            if (!MapUtils.isEmpty(robotDTOMap) && robotDTOMap.containsKey(userBookInfoVO.getAltId())) {
                 GroupUserDTO groupUserDTO = robotDTOMap.get(userBookInfoVO.getAltId());
                 RobotBaseInfoVO robotBaseInfoVO = new RobotBaseInfoVO();
                 robotBaseInfoVO.setRobotId(userBookInfoVO.getAltId());